After a unanimous vote by the Board of Selectmen, Richard Howe has been appointed deputy police chief in Tyngsborough. He will replace Richard Burrows, who resigned this month. Howe’s new position will become final once his contract is negotiated, at which point, he says, he plans to promote a sergeant from within the department to fill his former role of lieutenant. Howe will also serve as interim chief of the department; Police Chief William Mulligan has been on sick leave since December. In addition to his police training and more than 20 years of experience, Howe also holds a master’s degree in criminal justice, a law degree, and is pursuing a master’s degree in public administration.